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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 25 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130311
Prefixes after maximum aggregation: 80559
Unique aggregates announced to Internet: 62505
Total ASes present in the Internet Routing Table: 16227
Origin-only ASes present in the Internet Routing Table: 14099
Origin ASes announcing only one prefix: 6450
Transit ASes present in the Internet Routing Table: 2128
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1260458852
Equivalent to 75 /8s, 33 /16s and 19 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57559
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23669
Total APNIC prefixes after maximum aggregation: 12977
Prefixes being announced from the APNIC address blocks: 22068
Unique aggregates announced from the APNIC address blocks: 12596
APNIC Region origin ASes present in the Internet Routing Table: 1947
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 313
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 128411904
Equivalent to 7 /8s, 167 /16s and 105 /24s
Percentage of available APNIC address space announced: 69.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76972
Total ARIN prefixes after maximum aggregation: 47858
Prefixes being announced from the ARIN address blocks: 59703
Unique aggregates announced from the ARIN address blocks: 20640
ARIN Region origin ASes present in the Internet Routing Table: 8760
ARIN Region origin ASes announcing only one prefix: 3048
ARIN Region transit ASes present in the Internet Routing Table: 822
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 209745312
Equivalent to 12 /8s, 128 /16s and 117 /24s
Percentage of available ARIN address space announced: 73.5
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23009
Total RIPE prefixes after maximum aggregation: 16810
Prefixes being announced from the RIPE address blocks: 19865
Unique aggregates announced from the RIPE address blocks: 13222
RIPE Region origin ASes present in the Internet Routing Table: 4990
RIPE Region origin ASes announcing only one prefix: 2688
RIPE Region transit ASes present in the Internet Routing Table: 878
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 141810176
Equivalent to 8 /8s, 115 /16s and 218 /24s
Percentage of available RIPE address space announced: 65.0
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5550
Total LACNIC prefixes after maximum aggregation: 2215
Prefixes being announced from the LACNIC address blocks: 5050
Unique aggregates announced from the LACNIC address blocks: 3054
LACNIC Region origin ASes present in the Internet Routing Table: 363
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13486592
Equivalent to 0 /8s, 205 /16s and 202 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1110
Total AfriNIC prefixes after maximum aggregation: 699
Prefixes being announced from the AfriNIC address blocks: 724
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753600
Equivalent to 0 /8s, 26 /16s and 194 /24s
Percentage of available AfriNIC address space announced: 10.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 953 1119 681 Telstra Pty Ltd
4134 397 2432 111 Data Communications Bureau
2907 373 1864 349 SINET Japan
4755 352 131 61 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 324 355 257 UUNET
17557 300 21 151 Pakistan Telecom
17676 281 4156 32 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
4766 264 2896 191 Korea Internet Exchange for "
7474 264 306 214 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
9583 235 44 11 Satyam Infoway Ltd.,
3786 234 773 203 DACOM Corporation
9929 217 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 202 68 117 COMindico Australia
9498 171 22 29 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 142 60 131 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1433 8667 990 UUNET Technologies, Inc.
7018 1380 7034 952 AT&T
1239 950 3109 665 Sprint
209 883 3459 536 Qwest
6197 751 434 212 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 689 10859 562 Level 3 Communications, LLC
4323 673 606 202 Time Warner Communications, I
6198 615 374 226 BellSouth Network Solutions,
20115 582 316 329 Charter Communications
7843 523 498 123 Adelphia Corp.
852 515 1107 408 Telus Advanced Communications
7066 509 207 271 Virginia Polytechnic Institut
7132 442 7243 309 Southwestern Bell Internet Se
19029 418 174 275 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 379 180 236 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 693 2092 574 UUNET - Commercial IP service
3301 306 1170 291 TeliaNet Sweden
8220 279 421 249 COLT Internet - International
3320 276 1988 230 Deutsche Telekom AG
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 189 174 138 BT Ignite European Backbone
3246 178 438 176 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
3215 166 695 86 France Telecom Transpac
8708 162 111 156 Romania Data Systems S.A.
25186 160 181 113 France Telecom Transpac's Tra
3303 145 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
6746 103 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 343 120 66 ImpSat
8151 233 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 181 43 33 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 123 8 27 TVCABLE BOGOTA
6147 121 70 19 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
11992 86 25 32 Integrated Systems
8065 83 10 19 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 16 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 729 721 Covad Communications
6197 751 539 BellSouth Network Solutions,
4323 673 471 Time Warner Communications, I
7018 1380 428 AT&T
7843 523 400 Adelphia Corp.
6198 615 389 BellSouth Network Solutions,
209 883 347 Qwest
27364 354 330 Armstrong Cable Services
22909 317 306 Comcast Cable Corporation
5668 312 293 Century Telephone
4755 352 291 Videsh Sanchar Nigam Ltd. Aut
4355 390 289 EarthLink, Inc.
4134 397 286 Data Communications Bureau
1239 950 285 Sprint
22773 310 284 Cox Communications, Inc. Atla
6140 343 277 ImpSat
1221 953 272 Telstra Pty Ltd
9443 336 255 Primus Telecommunications
6347 334 255 SAVVIS Communications Corpora
20115 582 253 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:13 /12:57
/13:97 /14:275 /15:481 /16:7456 /17:1827 /18:3293
/19:8667 /20:9170 /21:6654 /22:9362 /23:10919 /24:71249
/25:184 /26:230 /27:164 /28:71 /29:22 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 607 751 BellSouth Network Solutions,
7018 503 1380 AT&T
6198 476 615 BellSouth Network Solutions,
701 436 1433 UUNET Technologies, Inc.
702 417 693 UUNET - Commercial IP service
7066 401 509 Virginia Polytechnic Institut
20115 366 582 Charter Communications
690 361 400 Merit Network
27364 348 354 Armstrong Cable Services
3356 344 689 Level 3 Communications, LLC
1239 330 950 Sprint
209 310 883 Qwest
5668 278 312 Century Telephone
19029 268 418 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 218 276 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 213 238 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:759 13:1 15:6 16:1 17:3
20:7 24:870 32:88 38:43 40:23 43:1
44:2 55:1 56:1 57:14 61:347 62:457
63:1846 64:1799 65:1793 66:2194 67:275 68:629
69:337 80:442 81:169 82:34 128:160 129:169
130:68 131:81 132:17 134:174 135:16 136:186
137:114 138:138 139:50 140:168 141:140 142:110
143:46 144:63 145:40 146:288 147:71 148:310
149:83 150:118 151:60 152:209 153:58 154:1
155:127 156:60 157:58 158:139 159:136 160:46
161:48 162:363 163:73 164:327 165:166 166:105
167:212 168:177 169:94 170:312 171:9 192:5487
193:2437 194:2011 195:1300 196:516 198:3638 199:2839
200:3024 201:3 202:4178 203:5314 204:2950 205:2029
206:2291 207:2620 208:2483 209:2796 210:955 211:411
212:901 213:986 214:23 215:24 216:3369 217:789
218:118 219:86 220:120 221:16 222:1
End of report
